Wheres the best place to connect a boost gauge? (TT legacy)

[allante666]

Wheres the best place to connect into, and also what range do i need? do I need one that reads into the negative as well? (is there any way to tell what each individual turbo is doing?

[decke48]

the best places is a vaccum line closest to the throttle body.. and for range 20psi or 2 bars is high enough for most people.. and you can get one that shows vaccum if you interested in seeing your vaccum at idle... dont know if you could see indivdual turbos with 2 gauges?

[allante666]

OK i fitted it. Im getting 14psi when i put my foot down, is that somewhere like right?

[decke48]

yeah

[rougeben83]

Negative/vacuum range is good too to diagnose vacuum leaks and general health of the engine (if you know how to read it).

My little boost gauge was a lifesaver when I had a vacuum leak and couldn't fix it in on the side of the road at night...I knew to nurse the car until I got to the hotel later that evening...

[allante666]

yeah the one i fitted reads from minus 30 psi to plus 30 psi.

[Sarra]

Putting the pickup right infront of the turbo would mess with your head because you would be seeing a lot more boost. As the charge cools, the PSI rating drops, so by the time it hits your motor, it'll be lower than at the turbo. Especially since you've got an intercooler. Put a gauge infront of each turbo to see what they do.

[rougeben83]

Most subaru owners just put a Tee on the vacuum line to the bypass-valve/bov

[Reuben]

Sorry for dredging all these old topics...

But: line 12 for a boost gauge, and yes, a gauge needs to go into negatives.

[subba]

What does 10 do?